🌌 Stone's Star System Generator

Asteroid Belt

Center: 0.28 AU

Composition

Type: Inner (Rocky/Metallic)

A dense region of planetesimals and debris.

Boundary

Planet 1 - Gas Giant

Semi-Major Axis: 0.56 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 439.7

Radius: 10.9

Gravity: 3.7 G

Time & Orbit

Eccentricity (e): 0.194

Orbit Range: 0.45 AU - 0.67 AU

Year: 279 Days

Day: 9.9 Hours

Environment

Temp: -152 °C

Axial Tilt: 39.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (9)

Outer Limit: 76,600,970 km

• M1: 135,536 km (0.097 R)
• M2: 526,585 km (0.029 R)
• M3: 889,808 km (0.035 R)
• M4: 1,336,657 km (0.039 R)
• M5: 1,722,171 km (0.11 R)
• M6: 2,108,881 km (0.104 R)
• M7: 2,512,197 km (0.072 R)
• M8: 3,004,374 km (0.086 R)
• M9: 3,374,330 km (0.104 R)

Planet 2 - Gas Giant

Semi-Major Axis: 0.68 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 974.9

Radius: 11

Gravity: 8.06 G

Time & Orbit

Eccentricity (e): 0.067

Orbit Range: 0.63 AU - 0.73 AU

Year: 374 Days

Day: 12.3 Hours

Environment

Temp: -153 °C

Axial Tilt: 21.6 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,600,970 km

• M1: 136,882 km (0.115 R)
• M2: 558,000 km (0.055 R)
• M3: 974,929 km (0.115 R)
• M4: 1,596,209 km (0.093 R)
• M5: 1,940,883 km (0.093 R)
• M6: 2,505,166 km (0.051 R)
• M7: 3,052,993 km (0.068 R)
• M8: 3,567,161 km (0.08 R)
• M9: 4,591,757 km (0.115 R)
• M10: 4,968,594 km (0.081 R)
• M11: 5,317,456 km (0.045 R)

Planet 3 - Gas Giant

Semi-Major Axis: 0.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 89.9

Radius: 11.9

Gravity: 0.63 G

Time & Orbit

Eccentricity (e): 0.199

Orbit Range: 0.57 AU - 0.85 AU

Year: 399 Days

Day: 14.7 Hours

Environment

Temp: -158 °C

Axial Tilt: 16.7 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (6)

Outer Limit: 76,600,970 km

• M1: 148,251 km (0.108 R)
• M2: 544,835 km (0.099 R)
• M3: 1,100,741 km (0.1 R)
• M4: 1,751,641 km (0.059 R)
• M5: 2,213,300 km (0.103 R)
• M6: 2,835,927 km (0.089 R)

Planet 4 - Gas Giant

Semi-Major Axis: 1.71 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 143.1

Radius: 14.9

Gravity: 0.64 G

Time & Orbit

Eccentricity (e): 0.208

Orbit Range: 1.35 AU - 2.07 AU

Year: 1491 Days

Day: 6.6 Hours

Environment

Temp: -197 °C

Axial Tilt: 29 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (11)

Outer Limit: 76,600,970 km

• M1: 185,352 km (0.096 R)
• M2: 648,656 km (0.077 R)
• M3: 1,240,017 km (0.101 R)
• M4: 1,717,533 km (0.104 R)
• M5: 2,534,936 km (0.036 R)
• M6: 3,351,142 km (0.116 R)
• M7: 4,832,310 km (0.057 R)
• M8: 5,899,542 km (0.08 R)
• M9: 6,428,819 km (0.058 R)
• M10: 7,075,680 km (0.104 R)
• M11: 7,628,743 km (0.097 R)

Planet 5 - Gas Giant

Semi-Major Axis: 2.47 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 343.4

Radius: 8

Gravity: 5.37 G

Time & Orbit

Eccentricity (e): 0.161

Orbit Range: 2.07 AU - 2.87 AU

Year: 2589 Days

Day: 7.2 Hours

Environment

Temp: -206 °C

Axial Tilt: 24.5 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (18)

Outer Limit: 76,600,970 km

• M1: 99,632 km (0.098 R)
• M2: 360,381 km (0.114 R)
• M3: 617,390 km (0.074 R)
• M4: 1,127,818 km (0.068 R)
• M5: 1,435,392 km (0.119 R)
• M6: 1,694,944 km (0.093 R)
• M7: 2,066,844 km (0.103 R)
• M8: 3,744,136 km (0.086 R)
• M9: 4,015,506 km (0.116 R)
• M10: 4,680,020 km (0.111 R)
• M11: 5,347,825 km (0.101 R)
• M12: 6,028,495 km (0.088 R)
• M13: 6,634,366 km (0.083 R)
• M14: 8,510,473 km (0.099 R)
• M15: 9,976,233 km (0.097 R)
• M16: 10,535,879 km (0.108 R)
• M17: 14,037,815 km (0.094 R)
• M18: 14,342,397 km (0.077 R)

Planet 6 - Gas Giant

Semi-Major Axis: 2.6 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 514.1

Radius: 12.7

Gravity: 3.19 G

Time & Orbit

Eccentricity (e): 0.069

Orbit Range: 2.42 AU - 2.78 AU

Year: 2796 Days

Day: 11.7 Hours

Environment

Temp: -212 °C

Axial Tilt: 33.8 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (17)

Outer Limit: 76,600,970 km

• M1: 164,558 km (0.085 R)
• M2: 785,987 km (0.039 R)
• M3: 1,375,552 km (0.087 R)
• M4: 2,985,674 km (0.097 R)
• M5: 3,559,831 km (0.086 R)
• M6: 4,008,625 km (0.093 R)
• M7: 4,931,045 km (0.104 R)
• M8: 5,442,819 km (0.034 R)
• M9: 6,383,940 km (0.045 R)
• M10: 6,795,184 km (0.101 R)
• M11: 7,732,265 km (0.101 R)
• M12: 8,457,665 km (0.06 R)
• M13: 9,056,655 km (0.116 R)
• M14: 11,862,662 km (0.088 R)
• M15: 13,709,897 km (0.027 R)
• M16: 15,990,516 km (0.062 R)
• M17: 16,855,790 km (0.119 R)

Planet 7 - Gas Giant

Semi-Major Axis: 3.88 AU

Status: Outer (Cold)

Composition: Hydrogen/Helium Atmosphere

Physical Data

Mass: 194.4

Radius: 12.5

Gravity: 1.24 G

Time & Orbit

Eccentricity (e): 0.186

Orbit Range: 3.16 AU - 4.6 AU

Year: 5097 Days

Day: 7 Hours

Environment

Temp: -222 °C

Axial Tilt: 35.2 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (12)

Outer Limit: 76,600,970 km

• M1: 166,054 km (0.052 R)
• M2: 662,270 km (0.066 R)
• M3: 1,085,931 km (0.12 R)
• M4: 2,186,522 km (0.073 R)
• M5: 3,278,288 km (0.115 R)
• M6: 4,314,103 km (0.119 R)
• M7: 5,914,950 km (0.09 R)
• M8: 7,661,206 km (0.099 R)
• M9: 8,602,476 km (0.108 R)
• M10: 13,469,643 km (0.072 R)
• M11: 14,357,057 km (0.093 R)
• M12: 17,965,358 km (0.054 R)

Planet 8 - Ice Giant

Semi-Major Axis: 7.5 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 147.9

Radius: 3.9

Gravity: 9.72 G

Time & Orbit

Eccentricity (e): 0.072

Orbit Range: 6.96 AU - 8.04 AU

Year: 13697 Days

Day: 24.8 Hours

Environment

Temp: -223 °C

Axial Tilt: 22.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (15)

Outer Limit: 76,600,970 km

• M1: 49,966 km (0.079 R)
• M2: 344,823 km (0.119 R)
• M3: 622,028 km (0.107 R)
• M4: 1,103,583 km (0.045 R)
• M5: 1,593,217 km (0.105 R)
• M6: 2,748,113 km (0.077 R)
• M7: 5,261,806 km (0.053 R)
• M8: 7,891,437 km (0.038 R)
• M9: 10,370,274 km (0.08 R)
• M10: 12,092,744 km (0.118 R)
• M11: 17,576,852 km (0.1 R)
• M12: 18,114,058 km (0.027 R)
• M13: 20,741,894 km (0.025 R)
• M14: 27,988,714 km (0.088 R)
• M15: 34,413,644 km (0.076 R)

Planet 9 - Ice Giant

Semi-Major Axis: 10.44 AU

Status: Outer (Cold)

Composition: Methane/Ammonia Ices

Physical Data

Mass: 552.5

Radius: 3.6

Gravity: 42.63 G

Time & Orbit

Eccentricity (e): 0.197

Orbit Range: 8.38 AU - 12.5 AU

Year: 22495 Days

Day: 17.6 Hours

Environment

Temp: -245 °C

Axial Tilt: 28.1 °

Atmosphere: H₂, CH₄

Biome: None

Satellites (29)

Outer Limit: 76,600,970 km

• M1: 54,902 km (0.085 R)
• M2: 250,427 km (0.12 R)
• M3: 407,804 km (0.064 R)
• M4: 837,898 km (0.108 R)
• M5: 1,013,226 km (0.058 R)
• M6: 1,359,545 km (0.08 R)
• M7: 2,070,734 km (0.036 R)
• M8: 4,871,206 km (0.114 R)
• M9: 6,433,606 km (0.078 R)
• M10: 8,564,328 km (0.117 R)
• M11: 9,904,277 km (0.029 R)
• M12: 10,809,194 km (0.057 R)
• M13: 11,767,817 km (0.12 R)
• M14: 14,147,919 km (0.088 R)
• M15: 14,598,807 km (0.025 R)
• M16: 15,136,911 km (0.09 R)
• M17: 15,371,480 km (0.07 R)
• M18: 21,954,535 km (0.098 R)
• M19: 23,070,086 km (0.099 R)
• M20: 27,099,205 km (0.095 R)
• M21: 29,218,708 km (0.036 R)
• M22: 32,730,967 km (0.111 R)
• M23: 33,783,986 km (0.106 R)
• M24: 42,255,415 km (0.04 R)
• M25: 43,032,276 km (0.118 R)
• M26: 51,683,970 km (0.112 R)
• M27: 55,297,955 km (0.076 R)
• M28: 59,270,228 km (0.105 R)
• M29: 69,269,200 km (0.116 R)

Kuiper Belt

Range: 30 - 46 AU

Composition

Type: Dwarf Planets/TNOs (Ices)

Reservoir of dwarf planets and volatile ices.

Outer System

Oort Cloud

Range: 465 - 12,102 AU

Composition

Type: Cometary Reservoir

System's final boundary, containing trillions of icy planetesimals.

Gravitational Limit